Concrete pile.



l T. W. RIDLEY.

CONCRETE PILE.

APPLICATION HLED 11111.19, 1913.

1,078,000. l Patented Nov. 11, 1913,

l .ww/@M1047 THOMAS WILLIAM RIDLEY, 0F MIDDLESBROUGH, ENGLAND.

CONCRETE PILE.

Specication of Letters Patent.

Application led April 19, 1913.

Patented Nov. 11, 1913.

Serial No. 762,362.

To all whom t may concern Be it known that I, THOMAS.v WILLIAM RmLEY, a subject of the King of Great Britain, residing at 67 'Marton road, Middlesbrough, inthe county of York, England, have invented new and useful Improvements Relating to Concrete Piles, of which the following is a specification.

This invention relates to concrete piles which are formed by first driving a tubular preparatory pile, fillin it with concrete and then withdrawing 1t leaving the concrete. in place. In some cases when employing this method, as the tubeis withdrawn the earth surrounding it forces itself into the space which should be filled with concrete and even mixes itself with the concrete.

According to this invention the concrete is rammed during the withdrawal of the' tube and this is done by the act of Withdrawing the tube.

Figures 1 and 2 are sectional elevations illustrating one form of apparatus for carrying out the invention. Fig. l Shows the position of the parts before, and Fig. 2 after, the withdrawal of the tube has commenced.

a is the ordinary tubular preparatory pile and I) I) are lugs fixed to its upper end.

c is the concrete within the tube a.

d is a rammer restin on the concrete c.

c e are links pivote at one end to the rammer (Z and at the other end to the ends of links f f and g g. The other ends of the links f f are pivoted to the lugs b b and the other ends of the links g g, are pivoted together and to the lifting chain h. The links 7', g arey toggle linksand connect the tube a with the chain h.. The links e are also toggle links connecting the rammer d with the links g and f.

When the chain la. is hauled up the concrete c forms a fulcrum for the system of levers connecting the chain h to the tube a and as the links f f and g g are-drawn toward each other as shown at Fig. 2 there is a tendency to force the rammer al downward and cause the concrete o to fill up the space which was occupied by the lower end of the tube a. When the parts have been drawn into the position shown at Fig. 2 the chain h may be lowered, the rammer d lifted and the top of the tube a lled with concrete and then the lifting be resumed.

What I claim is 1. The combination with a preparatory pile of a rammer, a lifting chain and toggle link connections between the chain, the pile and the rammer, whereby the rammer is operated when the chain 1s raised before the pile is lifted.

2. The combination with a preparatory' pile of a rammer, a lifting chain, toggle link connections between the chain and the pile, and toggle link connections, between the rammer and said first mentioned links, whereby the rammer is operated when the chain is raised before the pile is lifted.

3. The combination with a preparatory pile of a rammer, a lifting chain, expansible and contractible to gle link connections between the chain an the pile, and expansible and contractible toggle link connections between the. rammer and said first mentioned links, whereby the rammer is operated when the chain is raised before thepile is lifted.

4. The combination of a preparatory pile, a rammer, a lifting chain, two pairs o links the links of each pair being pivoted together at one end while their other ends are pivoted respectively to the preparatory pile and the lifting chain, and a third pair of links their ends being pivoted to the ra mmer and to the pivots connecting the links of the first pairs.

THOMAS WILLIAM RIDLEY.

Witnesses G. HY. MUsGRAvE, M. CoUTTs. 

